The budget ax has not been kind to the U.S. Army's long-running, tech-focused Land Warrior system, but last year backers did manage to get a small test deployment into the field in Iraq with one infantry battalion. Soldiers involved in the test have had some good things to say about the system, which among other things is built to deliver real-time location information via digital maps in helmet-mounted eyepieces. But they also say many features go unused, or don't always work as they're intended to, and that just means a lot of useless extra weight to carry. Upgrades are on the way, backers say.